US977795A - Railroad-spike. - Google Patents

Description

use the same.

WILLIAM GRONKE AND-WALLACE T. noose, or camera, sasxn'rcnnwniv, cAN'AnA;

' RAILROAD-SPIKE.

s etificaaonor Le a Patent. Patented Dec.'6,"1910.

Application filed November 4, 1909 Serial No. 526,232. I

To all wkontit may concern:-

' Be it knownthat'we, WILLIAM GRoNKE'.

and human ,T. Rowe, subjects" of the;

King of England, residing at Canora,j,in

' the county of Saskatchewan-Dominion of.

Canada, have invented certain new andu'se-- ful Improvements in Railroadaspikes; and v, We do hereby declare-the following. to be a full, clear, and exact descriptionof the in-.

vention, suchas; will enable others skilled in.

the art to which itappertains .to make and This invention relates to'frailroad spikes and its object ,i's-toprovide a novel form 'of' railroad-spike which, when 'onceinserted in a tie, may be rendered impossible of w1th-' drawal,

. With the above and other 'objedts in View,

the invention consistsin general of a rail-, I

road spike provided with barbs pivoted thereto and withmeans to project said barbs and hold them in projected position'when the spike is driven.

The invention further consists in certain novel details of construction and combina-- tions of parts'hereinafter "fullydescribed,

illustrated in the accompanying drawings, and specifically set forth in the claims.

In the accompanying drawings, like characters of reference indicatelike parts in the .severah'views, and :Figure 1 is a side elevationof a spike constructed inaccordance with this invention, the-barbs being folded inward. Fig. 2 is a section onthe line 2-2 of Fig. 1.; Fig. 3 is a section in the same plane as Fig. 7 'witli the' barbs,shown; pro.

jected."

The numeral; 10 indicatesthe body of a spikeand thisspike is O.(provided' with the usual head ll, The b y of the spike is preferably of uniform width and thicknessthroughout and is rovide'd; with a tapering point 12. Extending through the body 10..

1s a slot 13 and from the slot 13' through the top of the head 11 there extends a tubiform opening 14. Adjacent the bottom of the body 10 and Opening through the 'slot 13 are' pin receiving openings 15- and in. these opene ingsare held pins 16 whereto are pivoted barbs 17 so arranged thatthey may close-in with their outer sides flush with the sides of the body 10. The upper ends of these barbs are beveled as at 18 to form, in connection with the outer sides, cutting edges while the inner sides of the barbs are provided with a series-of ratchet teeth 19. Held to slide in-the opening, His a headed bar 20 provided with a triangular head 2 1which.is.

held in the 'slot 13. between the beveled p01.- tions 18 of the barbs when the latter are closed in. The length of this member 20 with its head 21 is such. that it may be in serted in the slot 13 and the bar or stem 20 pushed up into the opening 14. It will, of course, be necessary to do this before the barbs are placed in position and the'pins 16 inserted-to hold them. In the upper part movable pin .22 having a head 23. I

In the operationof the device the pin 22 is removed and the spike driven as is common with such devices. 1 When the spike has been driven solidly to itsposition the .pin 20 is replaced and struck with the driving hammer which results in. the triangular head 21 being forceddown between the inner faces of the barbs. The result of this is that the barbs are projected outward while of-the opening 14.there is provided a reat the same time the. sharp corners of the triangular head catchin the ratchet'teeth ofsaid barbs.

The pin 22 may then be re movedand utilized for driving other barbs into position. .By reason of this construction not only are thefbarbs projected outwardly but if the spike be driven farther the barbs are prevented. from closing into the slot '13 by reason of the ratchet teeth catching on. the corners of the head 2l so that these barbs cannot close. By'this means it is impossible to extract the s ike by driving it into force the barbs wit in their seat in the slot 13 and'then withdrawingitl as theNmfl barbs can. never,--when once pro ected,':be made to assume such position. w w

There has th'usbeen provided 'afSimple and eflicient device-'offthe kind described and for the ,pur os e specified; p

Having thus escribed the i ventiom 'what is claimed as new, is

1. In a railroad spike, a bodynpirovided with a through slot nearQits bottomextenm "ing longitudinally thereoflfsaid body fur-' ther' having-an opening extending from the in the lower part of the slot and adapted to lie entirely therein during driving ofthe spike, a plunger movable 1n the opening, 'a

head on'said, plunger to force said barbsapart whenmoved ownward therebetween, means to engage the upper end of the plunger to permit the same being-driven downslot upward through the :head, a-pair of .barb's pivoted at their lower ends to the body.

Ward and means on the head and barbs to prevent retraction of the head after the plunger is forced downward. p

2. In a railroad spike, a body provided with a through slot near its bottom extending longitudinally thereof, said body further having an opening connecting theresides of the barbs to engage the angles on" said head when the latter is moved downward said ratchets preventing retraction of said head, and a removable pin in the upper part of the opening adapted to rest on the upper end of the plunger and force the same downward when the upper endof the pin is struck. p

Intestimony whereof, we affix our signatures, in presence of two witnesses. v

' WILLIAM GRONKE'.

Witnesses:

O. S. LEE, FRED BRADSHAW.

- WALLACE T. ROUSE. t

Images